Home / 3,009.51-4,151.25-1,961.55

Finding the Fourth Proportional to 3,009.51, 4,151.25 and 1,961.55

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Solution

The fourth proportional to 3,009.51, 4,151.25 and 1,961.55 is: 2,705.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.51 : 4,151.25 = 1,961.55 : x
  2. Step 2: Convert to fraction form
    3,009.51/4,151.25 = 1,961.55/x
  3. Step 3: Cross multiply
    3,009.51x = 4,151.25 × 1,961.55
  4. Step 4: Simplify right side
    3,009.51x = 8,142,884.44
  5. Step 5: Solve for x
    x = 8,142,884.44/3,009.51
  6. Step 6: Final answer
    x = 2,705.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.